<template>
  <ma-form-item
    v-if="typeof props.component.display == 'undefined' || props.component.display === true"
    :component="props.component"
    :custom-field="props.customField"
  >
    <slot :name="`form-${props.component.dataIndex}`" v-bind="props.component">
      <a-cascader
        v-model="value"
        :path-mode="props.component.pathMode"
        :placeholder="props.component.placeholder || `请选择${props.component.title}`"
        :allow-clear="props.component.allowClear ?? true"
        :allow-search="props.component.allowSearch ?? true"
        :size="props.component.size"
        :disabled="props.component.disabled"
        :multiple="props.component.multiple"
        :options="props.component.options ?? dictList[dictIndex] ?? []"
        :input-value="props.component.inputValue"
        :default-input-value="props.component.defaultInputValue"
        :popup-visible="props.component.popupVisible"
        :default-popup-visible="props.component.defaultPopupVisible"
        :expand-trigger="props.component.expandTrigger"
        :filter-option="props.component.filterOption"
        :popup-container="props.component.popupContainer"
        :max-tag-count="props.component.maxTagCount"
        :format-label="props.component.formatLabel"
        :trigger-props="props.component.triggerProps"
        :check-strictly="props.component.checkStrictly"
        :load-more="props.component.loadMore"
        :loading="props.component.loading"
        :search-option-only-label="props.component.searchOptionOnlyLabel"
        :search-delay="props.component.searchDelay"
        :field-names="props.component.fieldNames ?? props.component?.dict?.props ?? { key: 'value', title: 'label' }"
        :value-key="props.component.valueKey"
        :fallback="props.component.fallback"
        :expand-child="props.component.expandChild"
        @change="rv('onChange', $event)"
        @search="rv('onSearch', $event)"
        @input-value-change="rv('onInputValueChange', $event)"
        @popup-visible-change="rv('onPopupVisibleChange', $event)"
        @clear="rv('onClear')"
        @focus="rv('onFocus')"
        @blur="rv('onBlur')"
      >
      </a-cascader>
    </slot>
  </ma-form-item>
</template>

<script setup>
import { get, set } from "lodash";
import MaFormItem from "./form-item.vue";
import { runEvent } from "@/components/MaForm/types/event";

const props = defineProps({
  component: Object,
  customField: { type: String, default: undefined }
});

const formModel = inject("formModel");
const dictList = inject("dictList");
const getColumnService = inject("getColumnService");
const columns = inject("columns");
const rv = async (ev, value = undefined) => await runEvent(props.component, ev, { formModel, getColumnService, columns }, value);
const index = props.customField ?? props.component.dataIndex;
const dictIndex = index.match(/^(\w+\.)\d+\./)
  ? index.match(/^(\w+\.)\d+\./)[1] + props.component.dataIndex
  : props.component.dataIndex;
const value = ref(get(formModel.value, index));

watch(
  () => get(formModel.value, index),
  vl => (value.value = vl)
);
watch(
  () => value.value,
  v => {
    set(formModel.value, index, v);
    index.indexOf(".") > -1 && delete formModel.value[index];
  }
);

if (
  props.component.dict &&
  (props.component.dict.name || props.component.dict.data) &&
  !value.value &&
  !props.component.multiple &&
  !props.component.pathMode
) {
  value.value = value.value + "";
}

rv("onCreated");
onMounted(() => rv("onMounted"));
</script>
